Set in the 1980s-'90s, the film revolves around all that went into transforming Bombay into Mumbai. The film, a Times of Indiareport states, will showcase the shutdown of iconic textile mills, the murder of a noted businessman, how the underworld, the cops, and the politicians changed the city's landscape.

The project is produced by Bhushan Kumar, Krishan Kumar, Anuradha Gupta and Sangeeta Ahir.

Gupta, who is known for his films like Kaante, Musafir, Shootout at Lokhandwala and Kaabil, said his upcoming directorial is his most ambitious project till date.

25 years, 17 films later I had to give my audience something bigger and better. Mumbai Saga is by far my most ambitious film which needed a visionary producer. And I am grateful to Bhushan Kumar for putting his faith and might in it. It is one such story that needs to be said on screen," Gupta said in a statement.

"Mumbai Saga is our first in the gangster drama genre and who better than Sanjay to direct it. The film is inspired by true events yet makes the characters so larger than life. The entire cast will bring so much to the table," Bhushan Kumar said.

Gupta's last film Kaabil(2017), starring Hrithik Roshan and Yami Gautam, was a revenge drama which revolved a visually impaired couple. The film received mixed critical response, but was a major hit at the domestic box office.